changed key comparison to be loosely typed, so an error would be triggered when an empty string is attempted to be used as an encryption key
diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index 18e4df7..d9c17ab 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -177,6 +177,7 @@
<li>Fixed a bug where extending the Controller class would result in a fatal PHP error.</li>
<li>Fixed a PHP Strict Standards Error in the index.php file.</li>
<li>Fixed a bug where getimagesize() was being needlessly checked on non-image files in is_allowed_type().</li>
+ <li>Fixed a bug in the Encryption library where an empty key was not triggering an error.</li>
</ul>
<h2>Version 1.7.2</h2>